Ultra-processed foods have become a staple in many diets around the world, offering convenience and long shelf lives, but at what cost? A recent French study has revealed a startling connection between the consumption of these foods and the risk of developing psoriasis, a chronic skin condition that can significantly alter one's appearance. This discovery adds to a growing list of potential health risks associated with ultra-processed foods, which already include heart disease, certain cancers, and even premature death.

The study, which analysed health and diet data from over 18,000 participants, found that those who consumed the highest amounts of ultra-processed foods (UPFs) had a 36% increased risk of suffering from psoriasis. Psoriasis is characterised by flaky, scaly patches of skin, and it can be particularly distressing when it appears on visible areas like the face. In Britain, approximately 2% of the population is affected by this condition.


UPFs are defined by their high content of artificial colouring, sweeteners, preservatives, calories, and sugar. They include a wide range of products such as ready meals, ice cream, and even seemingly innocuous items like ketchup. The convenience of UPFs has led to their pervasive presence in modern diets, particularly in the UK, where they make up an estimated 57 per cent of the national diet.


The research, published in the journal JAMA Dermatology, suggests that a diet high in UPFs could increase the body's propensity for inflammation, which in turn may elevate the risk of developing psoriasis. Psoriasis is believed to arise from an immune system dysfunction that triggers inflammation and accelerates skin cell growth. While skin cells typically regenerate every three to four weeks, this process can occur as quickly as every three to seven days in individuals with psoriasis.


Despite the significant findings, the study's authors acknowledge limitations, such as the reliance on participants' self-reporting of their skin condition, which could affect the reliability of the results. They call for further large-scale studies to explore the relationship between UPFs and psoriasis more deeply.

British experts, including Professor Wendy Hall from King's College London, urge caution in interpreting the study's results. They point out that the research shows a correlation, not causation, and suggest that individuals with psoriasis might consume more UPFs as a form of comfort eating due to self-esteem issues associated with the condition. Another concern is the broad categorisation of UPFs, which can include both a wholemeal loaf of bread with some health benefits and a ready meal high in salt, fat, and sugar.

The term UPF can be nebulous, making it challenging to pinpoint which specific foods might be contributing to health issues. Moreover, the consumption of UPFs might be symptomatic of other underlying problems, such as poverty, which can limit access to fresh fruits and vegetables.


The impact of UPFs extends beyond the risk of psoriasis. These foods often contain additives that undergo multiple industrial processes, which can degrade the physical structure of foods, leading to rapid absorption, blood sugar spikes, and reduced satiety. They may also harm the microbiome, the community of beneficial bacteria essential for good health.

As the UK leads Europe in UPF consumption, the implications for public health are significant. Obesity, driven in part by UPF consumption, costs the National Health Service (NHS) around £6.5 billion ($12.6 billion) annually. The relationship between diet and psoriasis remains an understudied area, but this latest research underscores the importance of examining our food choices more closely.

For our readers at the Seniors Discount Club, this study serves as a reminder of the importance of a balanced diet rich in whole foods. While the convenience of UPFs can be tempting, especially for those with busy lifestyles or limited mobility, the potential risks to our health and appearance are worth considering. Opting for fresh produce and minimally processed foods can contribute to better overall well-being and may help prevent the onset of conditions like psoriasis.

We invite you to share your thoughts and experiences. Have you noticed a difference in your health or skin condition after changing your diet? Do you find it challenging to avoid ultra-processed foods? Join the conversation in the comments below and let's discuss the impact of diet on our health and how we can make better food choices together.